2017 MAZDA MODEL CX-3 engine

6–27
Maintenance and Care
Owner Maintenance
Engine Coolant
Inspecting Coolant Level
WARNING
Do not use a match or live À ame in the
engine compartment. DO NOT ADD
COOLANT WHEN THE ENGINE IS
HOT:
A hot engine is dangerous. If the
engine has been running, parts of the
engine compartment can become very
hot. You could be burned. Carefully
inspect the engine coolant in the
coolant reservoir, but do not open it.


Pull over to a safe location, then
switch the ignition off and make sure
the fan is not running before
attempting to work near the cooling
fan:
Working near the cooling fan when it
is running is dangerous. The fan could
continue running inde¿ nitely even if
the engine has stopped and the engine
compartment temperature is high. You
could be hit by the fan and seriously
injured.


Do not remove either
cooling system cap when the engine
and radiator are hot:
When the engine and radiator are hot,
scalding coolant and steam may shoot
out under pressure and cause serious
injury.
NOTE
Changing the coolant should be done
by an expert repairer, we recommend an
Authorised Mazda Repairer.
Inspect the antifreeze protection and
coolant level in the coolant reservoir at
least once a year—at the beginning of
the winter season—and before travelling
where temperatures may drop below
freezing.

Inspect the condition and connections of
all cooling system and heater hoses.
Replace any that are swollen or
deteriorated.

The coolant should be at full in the
radiator and between the F or FULL and
L marks on the coolant reservoir when the
engine is cool.
SKYACTIV-G 2.0


Cooling system cap Coolant reservoir
Cooling fan

6–28
Maintenance and Care
Owner Maintenance
SKYACTIV-D 1.5


Cooling system cap Coolant reservoir
Cooling fan

If it is at or near L, add enough coolant to
the coolant reservoir to provide freezing
and corrosion protection and to bring the
level to F or FULL.
Securely tighten the coolant reservoir tank
cap after adding coolant.
CAUTION
  Radiator coolant will damage paint.  Rinse it off quickly if spilled. 

 If the “FL22” mark is shown on or
near the cooling system cap, use
of FL-22 is recommended when
replacing engine coolant. Using
engine coolant other than FL-22 may
cause serious damage to the engine
and cooling system.


If the coolant reservoir is empty or new
coolant is required frequently, consult
an expert repairer, we recommend an
Authorised Mazda Repairer.

6–30
Maintenance and Care
Owner Maintenance
Window and Headlight
Washer Fluid
Inspecting Washer Fluid Level
WARNING
Use only windscreen washer À uid or
plain water in the reservoir:
Using radiator antifreeze as washer
À uid is dangerous. If sprayed on the
windscreen, it will dirty the windscreen,
affect your visibility, and could result in
an accident.
Inspect À uid level in the washer À uid
reservoir; add À uid if necessary.


E

Use plain water if washer À uid is
unavailable.
But use only washer À uid in cold weather
to prevent it from freezing.
NOTE
Front and rear washer À uid is supplied
from the same reservoir.
Body Lubrication
All moving points of the body, such as
door and bonnet hinges and locks, should
be lubricated each time the engine oil is
changed. Use a nonfreezing lubricant on
locks during cold weather.

Make sure the bonnet's secondary latch
keeps the bonnet from opening when the
primary latch is released.

6–36
Maintenance and Care
Owner Maintenance
Battery Maintenance

To get the best service from a battery:
 


 Keep it securely mounted.



 Keep the top clean and dry.



 Keep terminals and connections clean,
tight, and coated with petroleum jelly or
terminal grease.
 


 Rinse off spilled electrolyte immediately
with a solution of water and baking
soda.
 


 If the vehicle will not be used for an
extended time, disconnect the battery
leads and charge the battery every six
weeks.

Inspecting Electrolyte Level
A low level of electrolyte À uid will cause
the battery to discharge quickly.


Upper level
Lower level
Inspect the electrolyte level at least once
a week. If it is low, remove the caps and
add enough distilled water to bring the
level between the upper and lower level
(illustration).

Do not over¿ ll.
Examine the speci¿ c gravity of the
electrolyte with a hydrometer, especially
during cold weather. If it is low, recharge
the battery.
Battery Recharging
NOTE
  Before performing maintenance or
recharging the battery, turn off all
accessories and stop the engine.
  To disconnect the battery, remove the
negative lead ¿ rst. Install it last when
connecting the battery.
  Be sure to remove the caps before
recharging the battery.
  (With i-stop system)  Do not quick-charge the battery.




 If the battery quickly discharges
because, for example, the lights were
left on too long with the engine off,
slow-charge it as required by battery
size and charger capacity.
 


 If the battery gradually discharges
because of high electric load while the
vehicle is being used, recharge it as
required by battery size and charger
capacity.

Battery Replacement
Contact an Authorised Mazda Repairer for
a battery replacement purchase.

6–37
Maintenance and Care
Owner Maintenance
Key Battery Replacement
If the buttons on the transmitter are
inoperable and the operation indicator
light does not À ash, the battery may be
dead.
Replace with a new battery before the
transmitter becomes unusable.
CAUTION
  Make sure the battery is installed
correctly. Battery leakage could
occur if it is not installed correctly.
  When replacing the battery, be
careful not to touch any of the
internal circuitry and electrical
terminals, bend the electrical
terminals, or get dirt in the
transmitter as the transmitter could
be damaged.
  There is the danger of explosion if
the battery is not correctly replaced.
  Dispose of used batteries according
to the following instructions.
 


 Insulate the plus and minus
terminals of the battery using
cellophane or equivalent tape.
 


 Never disassemble.



 Never throw the battery into ¿ re or
water.
 


 Never deform or crush. 

 Replace only with the same type
battery (CR2025 or equivalent).
The following conditions indicate that the
battery power is low:
 


 The KEY indicator light (green) À ashes
in the instrument cluster for about
30 seconds after the engine is turned off.
 


 The system does not operate and
the operation indicator light on the
transmitter does not À ash when the
buttons are pressed.
 


 The system's operational range is
reduced.

Replacing the battery at an Authorised
Mazda Repairer is recommended to
prevent damage to the key. If replacing the
battery by yourself, follow the instruction.
Replacing the key battery
1. Press the knob and pull out the
auxiliary key.

Knob

6–53
Maintenance and Care
Owner Maintenance
Fuses
Your vehicle's electrical system is
protected by fuses.

If any lights, accessories, or controls do
not work, inspect the appropriate circuit
protector. If a fuse has blown, the inside
element will be melted.

If the same fuse blows again, avoid using
that system and consult an expert repairer,
we recommend an Authorised Mazda
Repairer as soon as possible.
Fuse Replacement
Replacing the fuses on the vehicle's left
side
If the electrical system does not work, ¿ rst
inspect the fuses on the vehicle's left side.


1. Make sure the ignition is switched off,
and other switches are off.
2. Open the fuse panel cover.

3. Pull the fuse straight out with the
fuse puller provided on the fuse block
located in the engine compartment.


4. Inspect the fuse and replace it if it is
blown.

NormalBlown

5. Insert a new fuse of the same amperage
rating, and make sure it ¿ ts tightly. If
it does not ¿ t tightly, have an expert
install it. We recommend an Authorised
Mazda Repairer.
If you have no spare fuses, borrow one
of the same rating from a circuit not
essential to vehicle operation, such as
the AUDIO or OUTLET circuit.
CAUTION
Always replace a fuse with a genuine
Mazda fuse or equivalent of the same
rating. Otherwise you may damage the
electric system.
6. Reinstall the cover and make sure that
it is securely installed.

6–55
Maintenance and Care
Owner Maintenance
*Some models.
Fuse Panel Description
Fuse block (Engine compartment)



DESCRIPTION FUSE
RATING PROTECTED COMPONENT
1 C/U IG1 15 A For protection of various circuits
2 ENGINE IG1 7.5 A Engine control system
3 SUNROOF 10 A Sunroof
*
4 INTERIOR 15 A Overhead light
5

7.5 A Engine control system
6 AUDIO2 15 A Audio system
7 METER1 10 A Instrument cluster
8 SRS1 7.5 A Air bag
9 METER2 7.5 A Instrument cluster
*
10 RADIO 7.5 A Audio system
11 ENGINE3 15 A Engine control system
12 ENGINE1 15 A Engine control system
13 ENGINE2 15 A Engine control system
14 AUDIO1 25 A Audio system
15 A/C MAG 7.5 A Air conditioner

6–56
Maintenance and Care
Owner Maintenance
*Some models.
DESCRIPTION FUSE
RATING PROTECTED COMPONENT
16 AT PUMP 15 A Transaxle control system
*
17 AT 15 A Transaxle control system *
18 D.LOCK 25 A Power door locks
19 H/L RH 20 A Headlight (RH)
20

7.5 A Engine control system
21 TAIL 20 A Tail lights, Number plate lights, Position lights
22 ST.HEATER 15 A Heated steering wheel
*
23 ROOM 25 A Overhead light
24 FOG 15 A Front fog lights
*
25 H/CLEAN 20 A Headlight washer *
26 STOP 10 A Brake lights, Rear fog light *
27 HORN 15 A Horn
28 H/L LH 20 A Headlight (LH)
29 ABS/DSC S 30 A ABS, Dynamic stability control system
30 HAZARD 15 A Hazard warning À ashers, Direction indicator lights
31 FUEL PUMP 15 A Fuel system
*
32 FUEL WARM 25 A Fuel warmer *
33 WIPER 20 A Front window wiper
34

50 A For protection of various circuits
35 FAN2 30 A —
36 FUEL PUMP 30 A Fuel system
*
37 ABS/DSC M 50 A ABS, Dynamic stability control system
38 EVVT 20 A Engine control system
*
39 — — —
40 FAN1 30 A —
41 FAN3 40 A Cooling fan
42 ENG.MAIN 40 A Engine control system
43 EPS 60 A Power steering system
*
44 DEFOG 40 A Rear window defogger
45 IG2 30 A For protection of various circuits
46 INJECTOR 30 A Engine control system
*
47 HEATER 40 A Air conditioner
48 P.WINDOW1 30 A Power windows
49 DCDC DE 40 A For protection of various circuits
*